Zero Tolerance Combat Knives are professional-grade combat knives that are made to stand up to harsh conditions and everyday challenges. Available from KnifeArt in a variety of styles and designs, Zero Tolerance Knives are made with the goal of Zero Tolerance in design, function and performance. Zero Tolerance Knives are well suited for use by military, law enforcement, fire and rescue, and first-response personnel, all of whom demand the best from their equipment. These knives are the go-to choice for people that rely on their tools when the stakes are highest.

Some of the world's most renowned makers of fine knives contribute their designs to Zero Tolerance, including Rick Hinderer, Ken Onion and Strider Knives. The Zero Tolerance 0801BW Blackwash Flipper designed by Todd Rexford has a 3.5-inch blade and can be easily opened with either hand. It has a KVT ball-bearing pivot system for fast and smooth action and a pocket clip capable of being mounted for right or left pocket carry. The Zero Tolerance 0620 Emerson Design has a 3.6-inch Elmax steel blade coated in black with G-10 textured handles and Emerson's wave-shaped opening feature designed so the blade can be deployed as the knife is withdrawn from the pocket for instant use. The Zero Tolerance 0770CF Carbon Fiber Assisted Knife with a stone-washed 3.25-inch Elmax steel blade weighs just 3.1 ounces and has a strong handle of carbon fiber with a matte finish and a filed thumb rest on the blade spine for a better grip. The ZT 0200 Black Serrated Folder is a professional-grade, premium folding knife field-tested by officers on the job and deemed the best patrol knife overall by Tactical Response magazine.